GHSA-m9gg-hp2v-232j

Source

https://github.com/advisories/GHSA-m9gg-hp2v-232j

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-m9gg-hp2v-232j/GHSA-m9gg-hp2v-232j.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-m9gg-hp2v-232j

Aliases

CVE-2026-101916

Published

2026-09-30T15:35:53Z

Modified

2026-09-30T15:45:30Z

Severity

7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

@grpc/grpc-js: In certain configurations, getAuthContext can return unauthorized certificates as though they were authorized

Details

Impact

When server credentials are created with the requireClientCertificate option set to false, getAuthContext does not distinguish between authorized and unauthorized certificates in its return value. This can create improper authentication vulnerabilities for @grpc/grpc-js users who use the result of getAuthContext for authentication.

In particular, @grpc/grpc-js-xds can both set the requireClientCertificate option to false and use the return value of getAuthContext for RBAC authentication in some configurations.

Patches

This vulenrability is fixed in 1.13.6 and 1.14.5.

Workarounds

@grpc/grpc-js users using getAuthContext this way can avoid this problem by setting requireClientCertificate to true. @grpc/grpc-js-xds users using RBAC can avoid this by setting the require_client_certificate field to true in the DownstreamTlsContext in the xDS configuration.

Database specific

{
    "cwe_ids":  [
        "CWE-295"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-09-30T15:35:53Z",
    "nvd_published_at":  "2026-09-28T21:17:13Z",
    "severity":  "HIGH"
}

References

Affected packages

npm / @grpc/grpc-js

Package

Name: @grpc/grpc-js; View open source insights on deps.dev
Purl: pkg:npm/%40grpc/grpc-js

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.13.6

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-m9gg-hp2v-232j/GHSA-m9gg-hp2v-232j.json"

npm / @grpc/grpc-js

Package

Name: @grpc/grpc-js; View open source insights on deps.dev
Purl: pkg:npm/%40grpc/grpc-js

Affected ranges

Type: SEMVER
Events: Introduced

1.14.0

Fixed

1.14.5

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-m9gg-hp2v-232j/GHSA-m9gg-hp2v-232j.json"